Publications and resources

Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...

Our 2019/20 Annual Report is a print-friendly PDF file that includes our corporate governance and financial statements,...

In our role as system operator, Transpower has commissioned an external report to investigate the potential value of DER in a New Zealand context. This report broadly considers the value of...

Transpower New Zealand today released its annual results for the 2019/20 financial year. 

Transpower today released its financial statements for the year ended 30 June.

Transpower's Greenhouse Gas Emissions Inventory Report 2018-19. 

Read the main points of the future energy system outlined in our Whakamana i Te Mauri Hiko report and the actions needed to enable it here. This brochure was updated following Rio Tinto&...

This Statement of Corporate Intent (SCI) is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the StateOwned Enterprises Act 1986 (the...

In the rare event of a lightning strike or fault on the transmission line, towers or poles may transfer high voltage and dangerous currents into the ground for a very short instant. This is...

In March 2020, we launched Whakamana i Te...